Geoege r



UNITED 'STATES' PATENT OFFICE.

GEORGE R. JARMAN, OF BALTIMORE, MARYLAND, ASSIGNOR TO GEORGE IV. S. LOUOKS AND VILLIAM H. VVHEELER, BOTI-I OF YORK, PA.

'ICE-MACHINE] SPECIFICATION forming part of Letters Patent No. 349,798, dated September 28, l 1886.

Application filed March 19, 1886. Serial No. 195,316. (No model.) I

To all whom it may concern:

a series of holes or openings, h, are made in Be it known that I, GEORGE R. JARMAN, a the distributer, said openings being equal in citizen of the United States, residing at Balnumber to the number of coils to be used in timore, State of Maryland, have invented certhe tank. A series of small pipes, i, aresetain new and useful Improvements in Ice-lVIacured by suitable gas-tight j ointsin these h-oles, 5 5 chines, of which the following is a full, clear,` and thence lead into and'are secured by gasand exaet description. tight joints, one to each coil of the series of This invention relates to certain features in coils, the preferred order of such connection the construction and operation of that class of with respect to the distributer being'indicated.

ro ice-making machines in which the process is in the drawings, Figi-that is to say, the 60 carried on by the expansion of a refrigerating pipes nearest the inlet to the distributer being gas or fluid conducted in pipesin contact with connected to the outermost vcoils, and those the water to be frozen. most remote being secured to the innermost The invention consists in means for securing coils.

the equable distribution of the refrigerating In order to utilize to the best advantage the 65 medium through the conducting pipes or coils, expansion of the refrigerant, I make the disand also in means for securing a similar extributer coinparatively small, andits eductionhanstion of the spent refrigerant fromthe pipes pipes of about half the diameter of the coils, and its return to the condensing mechanisrn so that the refrigerant will expand Very little for reuse. until it gets into the coils, the proportions 70 In the accompanying drawings, in the sevshown in Fig. l being substantially correctin eral figures of which like parts are similarly this respect. The partition in the distributer designated, Figure 1 is a plan view of a freezserves to direct and dispcrse the incoming reimg-tank equipped with my invention. Fig. frigerant inequal and uniform quantities to 2 is a Vertical longitudinal section in the plane each of the several 'eductiou-pipes-a thing 7 5 of line x x, Fig. 1. Fig. 3 is a Vertical crossheretofore impossible, so far as my knowledge sectionin the plane of line 1/ y, Fig. 1; and Fig. of ice machinery extends. I deem this feature 4 isa cross-section on linez z, Fig. 2, of the disof my invention of prime importance in the tributer. economy of refrigerant andcits fullest utiliza- The letter A indicates a refrigerating-tank tion. 80 of proper dimensions and approved construc- The receiver j for the spent refrigerant is artion. This tank is supplied with a series of ranged at or'near .the bottom of the end of the suitable coils or '*zigzags of pipes, a, set vertank opposite the distributer, and receives' tically therein at proper distances apart. into its lower or bottom portion the outl'ets of b is the refrigerant-distributer, into which the several coils. This receiver may be made 8 5 the refrigerant is introduced throughapipe, c. of boiler plate, castings, or other suitable This distributer is arranged at or near the top strong material. The sides, ends, and top of of the tank, and is by preference a rect-angular this receiver are so proportioned that the sucbox, preferably cast in one piece, `with an intion-pipe k will be equidistanhor substantially 40 ternal prisniatic partition, d, extending from so, from each of the several inlets from the 90 the Vertical end next'the inlet nearly to the coils. This may be aecomplished by giving opposite end, where its end e is truncated or a sharp pitch to the top 011 opposite sides of beveled or inclined downward to thebottom of a middle point, and making the ends lower than the box. The sidesf of this partition are inthe middle, with the ysuction-pipe located at clined at about the angle of the end e from the such middle point. In this Way the suction is 95 apexial ridge g (which is about in the longicqual and uniform on all the inlets, and hence tudinal center of the box) to about the boteach coil is exhausted of its spent gas at about tom of the box, and said partition is nearly .the same time and in the same quantity. equal in height to the height of the box. At The suction-pipe is connected to the receiver the base-front and sides-of the part-ition d by a gas-tightjoint-such, for example, as the Ioo common packed gland shown. By this means of equable distribution and exhaustion of the refrigerant, all parts of the tank are under the same temperature, and may be kept so with a degree of uniformity and certainty hitherto unattainable, so far as I am aware, and hencc the formation of ice progresses uniformly throughout the tank.

What I claim is- V 1. An ice-machine provided with a distributer for the refrigerant, into which the refrigerant is received, and thcnce let uniformly and equally into each and every of the several coils, substantially as described.

2. A re'frigerant-distribnter for ice-machines, consisting of a gas-tight box having a prismatic partiton extending its lengthand near] y its height, and having its sides and one end slanting toward the outlets, substantiall y as described.

3. Arefrigcrant-distributerforice-machines, consisting of a box and prismatic partition therein, cast in one piece, substantially as descri-bed.

4. The combination of the distributer, a series of coils, and connections between the distributer and ooils of such dimensions as to .practically prevent the expansion of there- 5. In an ice-machine, a receiver for the spent refrigerant, consisting of a gas-tight vessel having its suction-pipe arranged substantially iequidistant from the several inlets from the tribution of refrigerant to the coils, the ooils connected thereto, and a receiver for the spent refrigerant having a suction-pipe arrang'ed substantially cquidistant from the inlets of said coils into said receiver, substant-ially as described.

7. The combination of a distributer having' a prismatic partition, a series of coils con-v nected With it, and a receiver into which said coils open, and having a suction-pipe substantially equidistant from the entrances of said several ooils into the receiver, substantially as described.

In testimony WhereofI have hereunto set my hand this 17th day of March, A. D. 1886.

GEORGE R. JARMAN.

XVitnesses:

VALTER B. XVHITE, SAMUEL RUBY. 

